Perfluoroethyl amines from the electrochemical fluorination of trimethylamine. Nmr and vibrational spectra of new fluoroalkyl amines

Abstract The perfluoroethyl amines C 2 F 5 N(CF 3 ) 2 , C 2 F 5 N(CF 3 )CHF 2 , and C 2 F 5 N(CHF 2 ) 2 have been isolated from the electrofluorination of N(CH 3 ) 3 as well as C 2 H 5 N(CH 3 ) 2 . Evidence is presented that, in the former case, the C 2 F 5 compounds are formed by ·CF 3 attack on partly fluorinated trimethylamines NC 3 F 9−n H n , n = 1 to 3. The compounds have been characterized by analytical, nmr and vibrational spectroscopic methods.